Manifold



A. A. BAILEY.

MANIFOLD.

APPLICATION FILED AUG-12, 1920.

Patented June 6, 1922.

976.; aerza zz y UNITED STATES PATENT OFFICE.

ALFRED A. BAILEY, OF SPOKANE, WASHINGTON.

MANIFOLD.

Application filed August 12, 1920. Serial No. 403,022.

To all whom it may concern:

Be it known that I, ALFRED A. BAILEY, a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in Manifolds, of which the following is a specification.

This invention relates to improvements in manifolds for explosion engines in which the mixture 'is vaporized by the heat from the exhaust gases during its passage through the manifold to the engine.

One of the objects of my invention is to cause a change of flow of the mixture in such a manner that all the globules of fuel and the minute particles of the latter as well as the moist mixture will be caused to flow against a heated abutment, the vaporized fuel leaving such abutment in a direction different from that in which itapproached the abutment whereby such a complete dispersion of the mixture will have been effected as to bring the entire volume into contact with such abutment for instant vaporization.

A further object is to surround the carburetor pipe with a chamber, connected with such abutment, in such a manner that after the mixture leaves the pipe, and strikes the abutment, it will travel downwardly circumferentially over the edge of the carburetor pipe into such chamber.

A further object is to provide intake or inlet pipes leading off in opposite directions from said chamber and in such heated relation with respect to the exhaust gases that after the mixture has been vaporized, condensation will be prevented during the flow of the vapor through said inlet pipes to the intake openings of the engine.

My invention has many other objects and features which will be more fully described in connection with the accompanying drawing and which will be more particularly set forth in and by the appended claims.

In the drawing Figure 1, is a vertical transverse sectional view of a manifold in which is incorporated the main features of my invention.

Figure 2, is a sectional view on line 2--2 of Figure 1.

Figure 3, is a view in side elevation showing the exterior construction of that portion of the manifold which is pertinent to my invention.

Like characters of reference designate similar parts throughout the different figures of the drawing.

My improved manifold comprises a casing having a top wall 1, side walls Or front and back walls 2 and 3, and a bottom wall 4:. The bottom wall takes the form as clearly illustrated in Figures 1 and 2 and the top wall has openings or connections 5, 6, 7 and 8, with the exhaust openings of the engine wherethrough the exhaust gases will fiow through the hollow casing as clearly indicated by the arrows A. The bottom wall 4, has a deflecting portion 9, whereby the path of travel of the exhaust gases will be directed effectively against one of the intake pipes, to be later described. It will be seen that the casing is larger in the central portion thereof and that the bottom wall is substantially in the form of a hollow well 10.

A. mixture supply pipe 11, has an elbow 12, for connection with a carburetor, not shown, and said pipe extendsthrough and into the casing, as indicated at 13, and terminates in a vertically disposed outlet end 14. The edge 15, of said outlet end is coned, as indicated, to facilitate downward flow of'the vapor thereover, as will presently appear. Superposed in overhanging relation to said outlet end is a dome 16, the lower edge of which extends downwardly somewhat below the outlet end 14. By reference to Figures 1 and 2, it will be seen that walls 17, joining the dome 16, forms therewith and with pipe 13, a circumferential chamber 18, extending about the outlet end 14:. Leading in opposite directions from said chamber are inlet pipes 19, which convey the vapor to the intake openings 20, of the engine, as indicated by arrows B. The casing is provided with an enlargement 21, which projects from the front wall of the casing sufiiciently to wholly house the dome 16 therein and thereby expose its entire upper wall face to the heating action of the exhaust gases. The lower wall 17, of said enlargement joins the front of the structure as clearly shown,

Now it will be clear that as the moisture ladened mixture ascends the pipe 13, it will strike the abutment dome 16, andbe radially dispersed so that practically all the volume of the mixture wlll come in contact with said dome. This dome, being heated, will completely vaporize the mixture and it will now be clear that the depending edge 21, being below the edge 14,'will function to make a most complete application of heat to the mixture because of the fact that the mixture must traverse substantially the complete inner face of the dome before it is released for passage into the chamber surrounding the outlet end 14. Further, a complete reversal of flow of the mixture is effected.

Attention is directed to the fact that the pipes 19, are in heated relation to the casing so that after the mixture has been vaporized, it cannot condense, and in the preferred form, as shown, pipes 19 are partly enclosed by the casing so that peripheral portions of the pipes will be effectively heated. The exposed portions of the pipes 19, outside the casing, will prevent overheating of the vapor so that if gasoline is the fuel used, it cannot burn.

I claim:-

1. A manifold comprising a hollow casing having a plurality of connections opening to the exhausts of the engine, a supply pipe leading from the carburetor and having a discharge end, a deflecting and vaporizing dome superposed above and extending downwardly over and annularly about and below said discharge end, the walls of said casing enclosing and annularly joining the lower edge of said dome and enclosing and joining said supply pipe annularly below the discharge end of the latter thereby forming with said dome and pipe a chamber annularly surrounding said pipe above and below the discharge end thereof, and inlet pipes having their intake ends opening to said chamber below the discharge end of said supply pipe, whereby the vapor deflected downwardly by said dome will be forced to traverse a maximum area of said dome before reaching said supply pipes.

2. A manifold comprising a hollow casing having a plurality of connections opening to the exhausts of the engine, a supply pipe leading from the carburetor and having a discharge end, a deflecting and vaporizing dome superposed above and extending downwardly over and annularly about and below the discharge end of said pipe, the Walls of said casing being flared and enclosing and joining the lower edge of said dome and encircling and joining said supply pipe annularly below the discharge end of the latter, thereby forming with said dome and pipe a chamber annularly surrounding said pipe above and below the discharge'end of said pipe, the walls of said casing partly surrounding said supply pipe throughout a portion of the length of the latter below said chamber, and inlet pipes partly enclosed in said casing throughout the greater portion of their length and having their intake ends opening to said chamber below the discharge end of said supply pipe, whereby the vapor deflected downwardly by said dome will be forced to traverse a maximum area of said dome before reaching said inlet pipes.

In testimony whereof I hereby afliX my signature.

ALFRED A. BAILEY. 

